Thankyou Vivek sir for helping me out. However I have some doubts regarding the solution being provided.
Why did you derivate f(m) and how did alpha equals minus beta ?
Again why f(alpha).f(-aplha) less than zero ?
Please help me out....
Dear Student
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Every time you post a question ,it is attended by different expert. so kindly upload the question as well so that we can provide you with further help.
Regards